No. Even if a new test does not detect particular antibodies, this doesn´t mean that you can recommence eating all the foods and additives to which a hypersensitivity was detected. Implementing the necessary diet changes reduces the general production of the antibodies which the resumption of the natural function of the intestine is an indicator for. The memory of your immune system reactivates the production of antibodies only when it comes in contact with something it has previously reacted to. So the test would only need to be repeated if the symptoms were to reoccur which is unlikely if you are keeping to your diet and rotation plan instructions. For a repetition of the test we recommend a waiting period of at least 2 years.
